Pump.



A. N. COOPER.

' PUMP.

APPLICATION FILED DEC. 6,1915.

LQIIII Patented Jan. 23,1917.

2 SHEETS-SHEET I.

#n L@ W Attorneys A. N. COOPER.

PUMP.

APPLICATION FILED DEC. 6. 1915.

Y Patented Jan. 23, 1917.

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2 SHEETS-SHEET 2.

f/Nbf Invemor Witnesses Attorneys ALBERT N. COOPER, OF DAVIS, CALIFORNIA.

PUMP.

Specification of Letters Patent.

Application led December 6, 1915. Serial No. 65,320.

To all 'whom t may concern.'

Be it known that I, ALBERT N. COOPER, a citizen of the United States, residing at Davis, in the county of Yolo and State of California, have invented a new and useful Pump, of which the following is a specification.

The present invention relates to pumps, and relates more especially to centrifugal pumps for elevating water and other fluids, although the device may also be used as a blower or fan.

It is the object of the invention to provide a novel and improved centrifugal pump having a unique rotor and its casing, and novel means for delivering the water or other fluid into the casing to the central portion of the rotor.

With the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed can be made within the scope of what is claimed without departing from the spirit of the invention.

The invention is illustrated in the accompanying drawings, wherein Figure 1 is a longitudinal section of the machine, taken on the line 1-1 of Fig. 2,

portions being shown in elevation. Fig. 2 is a cross section taken on the line 2-2 of Fig. 1. Fig. 3 is a plan view of one of the pedestals for supporting the rotor shaft. Fig. 4 is a vertical section of one pedestal taken on the line 4 4 of Fig. 1.

In carrying out the invention,l there is provided a rectangular base or frame 1, and a circular rotor casing 2 supported by said base between the ends thereof. Said casing embodies circular side plates 3 and an annular member 4 secured between the margins of the side plates 3. The vside plates 3 are provided with downwardlyv projecting portions 5 secured upon the base 1 and providing a lower inlet chamber therebetween. The annularmember 4 is provided at one side with an outletopening 6 for the casing, and an outlet member 7 communicating with the opening' projects tangentially upward from the periphery of the casing to conduct the fluid upwardly.

The side plates 3 of the casing are dished inwardly slightly, and are provided with central inlet openings 8, whereby both sides of the casing have inlets which are opposed to one another. The extensions 5 have openings 9, and U-shaped conduits or pipes 10 are terminally attached to the side plates 3 and extensions 5 to communicate with the openings 8 and 9. An inlet member 11 is attached to the lower end of the extensions 5 to communicate with the inlet chamber between said extensions, and the conduits 1() connect said inlet chamber with the inlet openings 8 of the casing at the opposite sides of the said casing. The suction pipe (not shown) can be connected to the inlet member 11 for the purpose of elevating water or other fluid, and a suitable conduit can be connected to the outlet member 7 to carry 0H the iuid to the point desired.

A longitudinal shaft 12 projects axially through the casing within the openings 8, and is journaled through outstanding studs 13 with which the conduits lOlare provided, said studs 13 having stufling boxes 14 holding packings, and glands 15 are tted in said stuffing boxes for compressing the packing against the shaft 12 to prevent leakage.

The terminals of the shaft 12 are supported by pedestals 16 secured upon the ends of the base 1, and pulley wheels 17 are keyed upon the shaft 12 between the pedestals 16 and rotor casing, whereby an engine or other prime mover can be belted to the shaft 12 for driving the same to operate the pump. A sleeve 18 is secured upon the shaft 12 within the casing 2 and projects through the openings 8 into the upper terminals of the conduits 10, and said sleeve 18 carries the rotor.

The rotor embodies a disk 19 integral with or secured to the sleeve 18 concentric therewith, and concentric with the casing midway between the sides of the casing. Outstanding from the opposite sides of the disk 19 are blades or vanes 20 extending along curved -or involute lines from the sleeve or hub 18 of the rotor to and slightly beyond the periphery of the disk 19, said Patented Jan. 23, 191?. i

blades being arranged in pairs and the blades of each pair being upon the opposite sides of the disk in alinement with one another. The blades 20 increase in width from their inner to their outer ends, to provide buckets which taper from their outer to their inner ends, the outer or free edges of the blades 20 having angularly extending wings or flanges 21 which complete the buckets. The wings 21 increase in width from their inner to their outer ends, and the inner ends of the wings 21 terminate short of the inner ends of the blades 20 to allow the water or other materialto readilypass onto the inner ends of the blades 2O past the wings 21, so that the material will pass into the buckets. The blades or buckets are curved away from the direction in which the rotor revolves, the rotor revolving in the direction of? the arrow in Fig. 2, while the blades are curved in the opposite direction.

The projecting portions of the sleeve 18 at the opposite sides of the rotor are provided with worms 22 working in the upper terminals of the conduits 10 and extending inwardly to the inlet openings 8 of the casing, the worms being `so arranged that when the shaft 12 is rotated for actuating "the rotor, the worms 22 convey the water or other material forcibly into the rotor casing and into the inner ends of the buckets.

In operation, when the shaft 12 is rotated, the worms 22 force the duid into the casing and the inner ends of the rotor buckets, and the rotor in being revolved will carry the iuid around with the buckets, and the Huid will be forced by centrifugal action upwardly through the outlet 6. The curvature and formation of the buckets enables the iuid to be effectively directed from the center to the periphery of the rotor, so that the fluid will be forced upwardly through the outlet 6 with considerable pressure.

Each of the pedestals 16 embodies a lu-` bricant receptacle 23 normally closed by a cap 24 hinged tothe upper end of the receptacle, as at 25, the upper'end of the receptacle 23 having notches 26 receiving the shaft 12, while the lower edges of the cap 24 has notches 27 receiving said shaft. A pair of bearings 28 is secured within the upper end of the receptacle 23, and the shaft is journaled through said bearings.

In order to lubricate the contacting portions of the shaft and bearings, a U-shaped channel 29 is terminally connected to the `upper portions of the bearings, and said bearings are provided with upper apertures 30 at the terminals of the channel or trough 29, the intermediate'portion of said channel being raised so that thelubricant therein flows into the terminals of the channel and down the apertures 30 to the contacting portions of the shaft and bearings. The outer wall of the intermediate portion of the channel or trough 29 is provided with an overhanging curved deflector 31 within the cap 24.

The lubricant contained within the receptacle 23 is raised by means of an endless chain or flexible element 32 passing around and resting upon the shaft 12 between the bearings 28, and flat buckets or spoons 33 are pivotally connected with the links of the chain 32.

When the shaft 12 is rotated, the chain 32 in resting upon the shaft will be moved through a circuitous path, and the buckets 33 will be passed through the lubricant, and then raised in depending position. When the buckets 33 are passed over the shaft 12 they will be swung by centrifugal action toward and against the intermediate portion of the trough 29, thereby slinging the drops of lubricant from the buckets 33 against the deflector 31, and any remaining lubricant upon the buckets will be thrown into the trough 29 when the buckets strike said trough. The lubricant flows downwardly from the baffle 31 into the trough, and thence into the terminals of the trough and down the apertures 30 into the bearings 28 for lubricating the contacting portions of the shaft and bearings. The receptacle 23 may contain sufficient lubricant to last a considerable length of time, without the necessity of replenishing the vsupply of lubricant.

Having thus described the invention, what is claimed as new is:

1. A pump embodying a casing including an annular member and circular side plates attached thereto, said annular member having an outlet opening at one side, the side plates having downwardly projecting portions, the annular member having a lower inlet chamber between said extensions and a depending inlet member communicating with said chamber, said extensions having openings communicating with said chamber, the side plates having central openings, U- shaped conduits terminally attached to the side plates and their extensions to communicate with the openings thereof, a shaft extending through the openings of the side plates and the respective portions of the conduits, a rotor carried by the shaft within the casing, and worms carried by the shaft within the conduits.

2. A. centrifugal pump, comprising a casing having dished sides having central inlets, said casing having an outlet in its periphery, and a rotor within the casing embodying a disk between the sides of the casing having a hub, said disk having alming pairs of outstanding blades at opposite sides, the blades extending along curved lines from said` hub to the periphery of the disk and being curved away from the directheir inner ends terminating short of the 13 tion in which the rotor revolves, the free inner ends of the blades. edges of said blades having angularly eX- In testimony that I claim the foregoing tending Wings forming buckets, the outer` as my own, I have hereto a'Iixed my signaends of the buckets projecting beyond the ture in the presence of two Witnesses.

periphery of said disk, said blades increas- ALBERT N. COOPER. ing inwidth from their inner to their outer Witnesses: ends, the Wings increasing in width from FRED BONETTI,

their inner to their outer ends and having FRANK GASTEIGER. 

